Brief history of the development of ultra-precise oscillators for ground and space applications

Norton, J. R.; Cloeren, J.M.; Sulzer, Peter

doi:10.1109/freq.1996.559818

Cited by 14 publications

(9 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is inversely dependent on the frequency. This cut is chosen to minimize temperature and frequency dependence [1]. Operating temperature of about 80-100°C is needed for oven controlled crystal oscillators (OCXO) design.…”

Section: Sc-cutmentioning

confidence: 99%

See 1 more Smart Citation

Recent progress in the performances of ultrastable quartz resonators and oscillators

Salzenstein

2016

Int. J. Simul. Multisci. Des. Optim.

View full text Add to dashboard Cite

-Stressed compensated (SC) cut led recently to the best frequency stability ever obtained with a quartz oscillator, 2.5 · 10 À14 for the flicker frequency modulation (FFM) floor. This result is confirmed in this paper with a 3.2 · 10 À14 ± 1.1 · 10 À14 . The quartz resonator is integrated in a 5 MHz enhanced aging box double oven controlled oscillator. After reminding a bit of history, this paper describes how the first significant development in terms of ultra-stable quartz state-of-the-art oscillators was performed in the last 20 years, how the resonators were chosen, and main information about the development of adequate electronics and how to mechanically and thermally stabilized such an ultra-stable oscillator. We also present how to characterize the expected performances, and hot topics in quartz based oscillators.

show abstract

Section: Sc-cutmentioning

confidence: 99%

“…Consequently the frequency of oscillation decreases from the initial value. The early history of the Development of ultra-precise oscillators for ground and space applications is strongly connected to the progress realized in quartz oscillators improvements [1]. In this paper we mainly focus on latter development.…”

Section: Introductionmentioning

confidence: 99%

Recent progress in the performances of ultrastable quartz resonators and oscillators

Salzenstein

2016

Int. J. Simul. Multisci. Des. Optim.

View full text Add to dashboard Cite

show abstract

“…Hamell's group also reported that by specifically changing the OG signal source from a VCXO to a BVA oscillator, which is a low-noise oscillator, an Allan deviation of σ y (1000 s) = 2 × 10 -17 was obtained [14,17]. However, since the only commercially available BVA oscillators are products having an oscillation frequency of 5 or 10 MHz [18], this method cannot be used in an arbitrary nominal frequency.…”

Section: Beat Methodsmentioning

confidence: 95%

“…. Since |u k -u k−1 | < M/2, s k can be limited to 1, 0, or -1, s k can be determined from p k -p k−1 according to Table A.1, c k can be obtained from formula (18), and u k can be regenerated from formula (A.3).…”

Section: Appendixmentioning

confidence: 99%

“…In these kinds of fields, an atomic oscillator having an extremely high frequency stability is used as a clock source, and a daily frequency stability on the order of 10 -13 to 10 -16 at averaging time of one day is achieved by commercial level devices [7,8,18,25]. For example, the very long baseline interferometer, which is a device that measures the time differences of radio waves arriving from a celestial body at multiple antennas on Earth to observe the position or image of the celestial body [2], uses hydrogen masers oscillator as their clock sources.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Frequency stability measuring technique using digital signal processing

Uchino

Mochizuki

2003

Electron. Comm. Jpn. Pt. I

View full text Add to dashboard Cite

SUMMARYTo measure the frequency stability of an atomic oscillator having high-frequency stability, a technique using a pair of mixers and a time interval counter is widely used. This technique shares the signals of a local oscillator, uses a pair of mixers to convert the signals of the reference oscillator and the signals of the test oscillator to beat signals, and then uses a time interval counter to measure the phase difference between the beat signals. In this paper, the authors propose a frequency stability measuring technique that uses a two-channel audio band digitizer in place of the time interval counter. This technique uses the local oscillator and pair of mixers to convert the test signals and reference signals to audio-band beat signals, and then performs an analog-to-digital conversion on the beat signals. When the phase difference between two beat signals is numerically calculated, not only the effect of the local oscillator's phase noise can be eliminated, but the DC offset voltage generated from the mixers is not a critical problem for frequency stability measurements. The authors developed a prototype frequency stability analyzer based on this technique and obtained an Allan deviation (square root of the Allan variance) of σ y (τ) = 5 × 10 −17 at τ = 1000 seconds as a result of measuring its residual noise at a frequency of 100 MHz. This technique can be used to analyze a wide range of properties such as the clock quality of digital devices that operate at high speed, as well as the frequency stability of atomic oscillators at arbitrary nominal frequencies.

show abstract

Distributed amplified ultra-stable signal quartz oscillator based

et al. 2012

View full text Add to dashboard Cite

International audienceThe aim of this communication is to present the performances of 5 MHz distributed ultra-stable system, based on ultra-stable Boitiers à Vieillissement Amélioré (BVA) oscillator. We demonstrated flicker frequency modulation (FFM) floor better than 4.5 × 10−14 ± 2.5 × 10−15 at 12 s with an intrinsic noise floor about 6 × 10−15 at 1 s with a τ−1/2 time integration dependence slope

show abstract

Brief history of the development of ultra-precise oscillators for ground and space applications

Cited by 14 publications

References 25 publications

Recent progress in the performances of ultrastable quartz resonators and oscillators

Recent progress in the performances of ultrastable quartz resonators and oscillators

Frequency stability measuring technique using digital signal processing

Distributed amplified ultra-stable signal quartz oscillator based

Contact Info

Product

Resources

About